Phillips Petroleum Company

Darrell W Walker

Floyd E Farha, Jr

Brent J Bertus

Marvin M Johnson

Gerhard P Nowack

Fu M Lee

Lewis E Drehman

Robert J Hogan

Arnold M Schaffer

A M Schaffer

A composition of matter, effective as cracking catalyst, comprises zeolite and a matrix material comprising aluminum phosphate, being substantially free of alumina and magnesia. A process for cracking hydrocarbon-containing feed streams having an initial boiling point of at least about 400.degree. F. (at atmospheric pressure) employs the above cracking catalyst.

Cracking catalyst and process

A composition of matter, suitable as cracking catalyst, comprises zeolite, silica matrix and vanadium oxide(s) at a level of at least 0.2 weight-% V. A process for preparing the above composition of matter comprises the steps of contacting zeolite in a silica matrix with at least one vanadium compound and calcining the thus contacted material. A process for cracking substantially liquid hydrocarbon-containing feed streams, which contain at least about 5 ppmw vanadium, in the presence of the above composition of matter as catalyst, is provided.

Catalytic cracking

Catalytic cracking catalyst

A novel cracking catalyst, a method of preparing same and an improved hydrocarbon cracking process are provided wherein adverse effects of metals such as nickel, vanadium, iron, copper and cobalt in the cracking catalyst are precluded or mitigated by contacting the cracking catalyst with an antimony treating agent comprising at least one of elemental antimony and compounds thereof and a lithium treating agent comprising at least one of elemental lithium and compounds thereof whereby there is added to said catalyst a modifying amount of each antimony treating agent and lithium treating agent with the weight ratio of antimonmy to lithium being such as to provide passivation of contaminating metals greater than the sum of the passivation effect of each of antimony treating agent and lithium treating agent individually.

Passivation of metal contaminated cracking catalysts

A novel cracking catalyst, a method of preparing same and an improved hydrocarbon cracking process are provided wherein adverse effects of metals such as nickel, vanadium, iron, copper and cobalt in the cracking catalyst are precluded or mitigated by contacting the cracking catalyst with an antimony treating agent comprising at least one of elemental antimony and compounds thereof and a lithium treating agent comprising at least one of elemental lithium and compounds thereof whereby there is added to said catalyst a modifying amount of each antimony treating agent and lithium treating agent with the weight ratio of antimony to lithium being such as to provide passivation of contaminating metals greater than the sum of the passivation effect of each of antimony treating agent and lithium treating agent individually.

A catalyst and process for the selective hydrogenation of acetylene, said catalyst comprising palladium and silver with the palladium concentrated as a skin and the silver distributed throughout.

Selective hydrogenation

Selective hydrogenation catalyst

A strong zinc aluminate is prepared by first wetting a particulate alumina hydrate with a dilute acid to form a paste. Particulate zinc oxide is then added to the resulting paste. The mixture of alumina hydrate and zinc oxide is then dried and calcined to form zinc aluminate.

Zinc aluminate prepared using an alumina hydrate

The catalytic reforming of a feedstock which contains at least one reformable organic compound or the hydrocracking of a feedstock which contains at least one hydrocrackable organic compound is carried out in the presence of a catalyst composition comprising zinc and titanium.

Catalytic reforming and hydrocracking of organic compounds employing

In the precipitation of a tin-containing component and a phosphorus-containing component from an acid solution with a base to prepare a catalyst of improved selectivity to produce diolefin from corresponding mono-olefin there is used with the base, or thereafter, a water-soluble sulfide. The water-soluble sulfide can be at least one of an alkali-and an alkaline earth metal sulfide and ammonium sulfide.

Oxidative dehydrogenation catalyst preparation

A process is used to dehydrogenate organic compounds to a higher degree of unsaturation by contacting in a first step, the organic compound with a calcined zinc titanate catalyst modified with lithium or magnesium. In the second step, the catalyst is contacted with oxygen essentially in the absence of the dehydrogenatable organic compound. The first and second steps are repeated sequentially.

Lithium- or magnesium-promoted zinc titanate catalyst for

Hydrocarbon feedstocks are dehydrogenated to compounds having the same number of carbon atoms and a higher degree of unsaturation by contacting the feedstock in the vapor phase in the presence of molecular oxygen with a catalyst consisting essentially of nickel, lead, phosphorus and combined oxygen, and optionally, an alkali metal. Representative of such conversions is the oxidative dehydrogenation of butane to butenes and butadiene.

Dehydrogenation of organic compounds

A process is used to dehydrogenate organic compounds to a higher degree of unsaturation by contacting in a first step, the organic compound with a calcined zinc titanate catalyst. In the second step, the catalyst is contacted with oxygen essentially in the absence of the dehydrogenatable organic compound. The first and second steps are repeated sequentially.

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Bartlesville, OK, United States of America

Darrell W Walker